Two nearly identical smiley faces—each with a yellow circular head, black outline, eyes, and an arc-based mouth—are rendered side by side. The component-based React code composes `Face`, `FaceContainer`, `HeadCircle`, `Eye`, and `Mouth` components, using D3's `arc` generator to define the mouth path. SVG circles serve as the head and eyes, while the face is centered via a translated `<g>` element. The example demonstrates reusable, parameterized React components for simple data-driven graphical compositions.